So, I thought that despite all my previous experience with deity games, I'll give this a shot. Deity, small continents, all victory types enabled, marathon speed (I really wanted to play out all the wars to the maximum).
Started Austria because I haven't played it before, got a fairly good start location, marble, stone, 2 sugar and a lone cow, along a river. I had one neighbour to share my island with, the Mayans, who kept pestering, but terrain favored me, and 2 composite bowmen kept them at bay.
I started with tradition, seeing that I had very little space to expand, managed to get stone circles as pantheon, finished a stonehenge, could found a religion with quite good options left (tithe, divine inspiration, pagodas, iterant preachers). Annexed some city states, continued gold tactic with commerce, plus nearly all cities were coastal anyway, so merchant navy really speeded things up.
I decided to start the offensive in the renaissance (I wouldn't have had much chance before without properly upgraded units), so I started wonder hoarding, mainly the merchant/gold ones. The mayans outteched me so much that when I attacked them with fresh gatlings and hussars, they had gw infantries and bombers. They were leading score by a lot until they lost their capital (half of their cities died to ships though). They were insanely good targets for spying on the other hand, got like 10 techs off them until they went down. After I realized how huge a lead they have, I disregarded tech almost entirely, focused on gold and culture (to get merchant navy and meritocracy).
After the Mayans had bit the dust, it was easy, I had all their cities, 4 hussars with drill 3, march, medic 1-2, 4 gatlings with barrage 3, march, range, logistics, 4 frigates with either targeting or bombardment maxed, range, logistics. Much later the bunch got 2 aa guns and a destroyer, but the only real counter against conquest was happiness, I had to buy theatres in nearly every city (besides meritocracy, all happiness wonders, Order opener, etc). The goal was not to raze any city, despite how useless it might have been.
All in all there were some things which were very funny. Mayan tech speed was insane, they hit industrial era the same time I hit medieval, had to defend against infantry with crossbows. Korea hit atomic before I hit modern (by that time I had like 3 times their population). Ai players produced tons of gold, like 3-4 times they could based on their cities.
For those who are interested, I'll attach the save file at the turn the last capital went down, the rest would've been really easy anyway, there was 1 player left, and to counter unhappiness, I could've simply started to buy stadiums. The cities might be badly built (I am a big fan of production, so I tend to build seaports for a lone fish for example), but the army was the only thing that mattered anyway.